Built for the SCDTR course at Instituto Superior Técnico, this repository contains the code for a distributed illumination system. The system is composed of a set of nodes, each representing some physical space needing illumination, with a light sensor, a light source and the ability to communicate with other nodes. For a set illumination level, the nodes will cooperate to achieve it using a consensus algorithm. The nodes are based on the Raspberry Pi Pico and communicate using I2C.
All nodes are running the same code presented in the _main directory, responsible for structuring the network in a meaningful and efficient way: the first node connected becomes the root of the network, assigning a unique address to each subsequent node and becoming the orchestrator of the calibration process and consensus algorithm.
Each node exposes a Serial interface to communicate with a computer - this interface may be used to configure or read data from any node. Built on top of this interface, the serial_com_async.py Python script, using matplotlib and pysimplegui for the GUI, allows for the visualization of data within all nodes in real time, leveraging the network's capability to relay requests and responses between nodes.